Triptycene–Bis(aroyleneimidazole)s as Non-Fullerene Acceptors: The Missing Links

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Elisabeth H. Menke - , Heidelberg University  (Author)
  • David Leibold - , Heidelberg University  (Author)
  • Felix J. Berger - , Heidelberg University  (Author)
  • Frank Rominger - , Heidelberg University  (Author)
  • Yana Vaynzof - , Heidelberg University  (Author)
  • Michael Mastalerz - , Heidelberg University  (Author)

Abstract

The syntheses of four triptycene-bis(aroyleneimidazole)s—the missing links with respect to the previously reported triptycene–mono(aroyleneimidazole)s and triptycene–tris(aroyleneimidazole)s—are presented. Their optoelectronic properties and use as non-fullerene acceptors in organic photovoltaics with poly({4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl}[3-fluoro-2-(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl) (PTB7) as a donor are described; these systems reach a maximum power conversion efficiency of 2 %. Furthermore, the effect of molecular symmetry on the photovoltaic device performance is discussed.

Details

Original languageEnglish
Pages (from-to)1390-1395
Number of pages6
JournalChemPlusChem
Volume82
Issue number12
Publication statusPublished - Dec 2017
Peer-reviewedYes
Externally publishedYes

External IDs

PubMed 31957235

Keywords

Sustainable Development Goals

ASJC Scopus subject areas

Keywords

  • aroyleneimidazoles, donor–acceptor systems, non-fullerene acceptors, organic photovoltaic devices, photochemistry